<template>
  <div id="app">
    <!-- <el-button type="primary">主要按钮</el-button>
    <el-input v-model="username"></el-input> -->
    <!-- 一级路由的路由出口 -->
    <router-view />
  </div>
</template>

<script>
export default {
  data() {
    return {
      username: "zhangsan",
    };
  },
};
</script>

<style lang="scss"></style>
